Montgomery County Population 2018

Montgomery County's estimated population is 1,058,810 with a growth rate of 1.00% in the past year according to the most recent United States census data. Montgomery County is the 1st largest county in Maryland.

Year Population Growth Growth Rate
20171,058,81010,4781.00%
20161,048,3328,9620.86%
20151,039,3709,1820.89%
20141,030,18810,8971.07%
20131,019,29111,8031.17%
20121,007,48814,1621.43%
2011993,32617,1861.76%
2010976,140219,11328.94%
1990757,027177,97430.74%
1980579,05356,24410.76%
1970522,809181,88153.35%
1960340,928176,527107.38%
1950164,40180,48995.92%
194083,91234,70670.53%
193049,20614,28540.91%
192034,9212,8328.83%
191032,0891,6385.38%
190030,4513,26612.01%
189027,1852,4269.80%
188024,7594,19620.41%
187020,5632,24112.23%
186018,3222,46215.52%
185015,8604042.61%
184015,456-4,360-22.00%
183019,8163,41620.83%
182016,400-1,580-8.79%
181017,9802,92219.40%
180015,058-2,945-16.36%
179018,0030.00%

Montgomery County Population Growth

Population Data via

Montgomery County Race Data

Race Population Percentage
White637,00260.16%
Black or African American198,68718.77%
Asian157,83514.91%
Two or More Races34,3233.24%
American Indian and Alaska Native7,3740.70%
Native Hawaiian and Other Pacific Islander1,0120.10%

Montgomery County Population Pyramid

0k10k20k30k40k Male Population0k10k20k30k40k Female Population8580757065605550454035302520151050
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990